・ImageOptim 1.7.1(OS X 10.9以上対応、フリーウェア) PNGやJPEG画像に含まれるEXIFタグ、コメント、カラープロファイルなどの 情報を削除して画像ファイルの容量を小さくするソフトです。 複数ファイルの一括処理、元の画像ファイルからの節減率の確認ができます。
Version 1.7.1 Added experimental Guetzli optimizer. It's off by default (enable in Preferences), because it's very slow: 1 minute + 200MB RAM per megapixel. It is normal for a large photo to take 10 minutes and gigabytes of memory. It's ineffective on JPEGs with quality 85 or lower. It's best to create JPEGs with 100% quality for running Guetzli on them. Guetzli does not support color profiles, so only use sRGB. Running Guetzli on the same image twice is not recommended, as it will decrease quality more than it reduces the file size. If you need smaller files, disable Guetzli, and enable Lossy mode instead.
|